diff --git a/components/config/interface/config_blob.h b/components/config/interface/config_blob.h
new file mode 100644
index 0000000..4f8325f
--- /dev/null
+++ b/components/config/interface/config_blob.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2021, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CONFIG_BLOB_H
+#define CONFIG_BLOB_H
+
+#include <stddef.h>
+
+/**
+ * A general-purpose blob of configuarion data.  Points to a buffer
+ * that contains the actual data.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Structure definition for a config_blob
+ *
+ */
+struct config_blob
+{
+	const void *data;
+	size_t data_len;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CONFIG_BLOB_H */